Study the diagram below and answer questions that follow.

Crusher

Density Media Separation

From Figure $1$ above, draw a table indicating sampling points, type of sample and method of sampling.

$1$

Discuss the importance of sample size determination in metallurgical sampling. How would you determine the appropriate sample size for a specific section of processing plant? Consider the section of interest to be mineral processing section, Smelting section and electrolysis.

Evaluate how Gy$\text{'}$s theory informs the implementation of composite sampling techniques to create representative composite samples for analysis.

Briefly describe the role of quality control $($QC$)$ samples in metallurgical sampling and highlight three key factor to consider when designing a $QC$ program to ensure the reliability of analytical results.

$(8)$